DE3501808C2 - - Google Patents

Info

Publication number
DE3501808C2
DE3501808C2 DE3501808A DE3501808A DE3501808C2 DE 3501808 C2 DE3501808 C2 DE 3501808C2 DE 3501808 A DE3501808 A DE 3501808A DE 3501808 A DE3501808 A DE 3501808A DE 3501808 C2 DE3501808 C2 DE 3501808C2
Authority
DE
Germany
Prior art keywords
ultrasonic transducer
adaptation layer
layer
ultrasonic
transducer system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE3501808A
Other languages
German (de)
English (en)
Other versions
DE3501808A1 (de
Inventor
Fritz Breimesser
Reinhard Dr. 8520 Erlangen De Lerch
Guenther 8551 Heroldsbach De Graebner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to DE19853501808 priority Critical patent/DE3501808A1/de
Priority to US06/820,208 priority patent/US4672591A/en
Priority to JP61009820A priority patent/JPS61170199A/ja
Publication of DE3501808A1 publication Critical patent/DE3501808A1/de
Application granted granted Critical
Publication of DE3501808C2 publication Critical patent/DE3501808C2/de
Granted legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10KSOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/02Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B06GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06BMETHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/06Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
    • B06B1/0644Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element
    • B06B1/0662Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element with an electrode on the sensitive surface
    • B06B1/067Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element with an electrode on the sensitive surface which is used as, or combined with, an impedance matching layer

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Mechanical Engineering (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
DE19853501808 1985-01-21 1985-01-21 Ultraschallwandler Granted DE3501808A1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19853501808 DE3501808A1 (de) 1985-01-21 1985-01-21 Ultraschallwandler
US06/820,208 US4672591A (en) 1985-01-21 1986-01-17 Ultrasonic transducer
JP61009820A JPS61170199A (ja) 1985-01-21 1986-01-20 超音波変換器および超音波変換器システム

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19853501808 DE3501808A1 (de) 1985-01-21 1985-01-21 Ultraschallwandler

Publications (2)

Publication Number Publication Date
DE3501808A1 DE3501808A1 (de) 1986-07-24
DE3501808C2 true DE3501808C2 (enrdf_load_stackoverflow) 1989-04-27

Family

ID=6260320

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19853501808 Granted DE3501808A1 (de) 1985-01-21 1985-01-21 Ultraschallwandler

Country Status (3)

Country Link
US (1) US4672591A (enrdf_load_stackoverflow)
JP (1) JPS61170199A (enrdf_load_stackoverflow)
DE (1) DE3501808A1 (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4325028A1 (de) * 1993-07-26 1995-02-02 Siemens Ag Ultraschall-Wandlereinrichtung mit einem ein- oder zweidimensionalen Array von Wandlerelementen
DE102007045494B4 (de) * 2006-09-22 2017-10-19 Denso Corporation Ultraschallsensor

Families Citing this family (111)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4976150A (en) * 1986-12-30 1990-12-11 Bethlehem Steel Corporation Ultrasonic transducers
US5065068A (en) * 1989-06-07 1991-11-12 Oakley Clyde G Ferroelectric ceramic transducer
US5038067A (en) * 1990-05-18 1991-08-06 Federal Industries Industrial Group Inc. Acoustic transducer
US5175709A (en) * 1990-05-22 1992-12-29 Acoustic Imaging Technologies Corporation Ultrasonic transducer with reduced acoustic cross coupling
US5160870A (en) * 1990-06-25 1992-11-03 Carson Paul L Ultrasonic image sensing array and method
US5220538A (en) * 1991-08-08 1993-06-15 Raytheon Company Electro-acoustic transducer insulation structure
EP0655156B1 (de) * 1992-08-13 1996-06-19 Siemens Aktiengesellschaft Ultraschallwandler
US5287331A (en) * 1992-10-26 1994-02-15 Queen's University Air coupled ultrasonic transducer
US5321332A (en) * 1992-11-12 1994-06-14 The Whitaker Corporation Wideband ultrasonic transducer
US5370120A (en) * 1992-12-08 1994-12-06 Siemens Aktiengesellschaft Ultrasound imaging apparatus
US5373268A (en) * 1993-02-01 1994-12-13 Motorola, Inc. Thin film resonator having stacked acoustic reflecting impedance matching layers and method
US5371717A (en) * 1993-06-15 1994-12-06 Hewlett-Packard Company Microgrooves for apodization and focussing of wideband clinical ultrasonic transducers
US5460181A (en) * 1994-10-06 1995-10-24 Hewlett Packard Co. Ultrasonic transducer for three dimensional imaging
US5553035A (en) * 1993-06-15 1996-09-03 Hewlett-Packard Company Method of forming integral transducer and impedance matching layers
US5392259A (en) * 1993-06-15 1995-02-21 Bolorforosh; Mir S. S. Micro-grooves for the design of wideband clinical ultrasonic transducers
US5434827A (en) * 1993-06-15 1995-07-18 Hewlett-Packard Company Matching layer for front acoustic impedance matching of clinical ultrasonic tranducers
US5423319A (en) * 1994-06-15 1995-06-13 Hewlett-Packard Company Integrated impedance matching layer to acoustic boundary problems for clinical ultrasonic transducers
US5596239A (en) * 1995-06-29 1997-01-21 Motorola, Inc. Enhanced quality factor resonator
US5617065A (en) * 1995-06-29 1997-04-01 Motorola, Inc. Filter using enhanced quality factor resonator and method
US5696423A (en) * 1995-06-29 1997-12-09 Motorola, Inc. Temperature compenated resonator and method
US5724315A (en) * 1996-05-29 1998-03-03 The United States Of America As Represented By The Secretary Of The Navy Omnidirectional ultrasonic microprobe hydrophone
US7376236B1 (en) 1997-03-17 2008-05-20 American Technology Corporation Piezoelectric film sonic emitter
US6011855A (en) 1997-03-17 2000-01-04 American Technology Corporation Piezoelectric film sonic emitter
US5920146A (en) * 1997-06-05 1999-07-06 Motorola Inc. Electrode edge wave patterns for piezoelectric resonator
US5903087A (en) * 1997-06-05 1999-05-11 Motorola Inc. Electrode edge wave patterns for piezoelectric resonator
US6049159A (en) * 1997-10-06 2000-04-11 Albatros Technologies, Inc. Wideband acoustic transducer
US6050943A (en) 1997-10-14 2000-04-18 Guided Therapy Systems, Inc. Imaging, therapy, and temperature monitoring ultrasonic system
JP3926448B2 (ja) * 1997-12-01 2007-06-06 株式会社日立メディコ 超音波探触子及びこれを用いた超音波診断装置
US6359375B1 (en) * 1998-05-06 2002-03-19 Siemens Medical Solutions Usa, Inc. Method to build a high bandwidth, low crosstalk, low EM noise transducer
US6113546A (en) 1998-07-31 2000-09-05 Scimed Life Systems, Inc. Off-aperture electrical connection for ultrasonic transducer
US20050100181A1 (en) * 1998-09-24 2005-05-12 Particle Measuring Systems, Inc. Parametric transducer having an emitter film
US6850623B1 (en) 1999-10-29 2005-02-01 American Technology Corporation Parametric loudspeaker with improved phase characteristics
US6406433B1 (en) * 1999-07-21 2002-06-18 Scimed Life Systems, Inc. Off-aperture electrical connect transducer and methods of making
US6307302B1 (en) 1999-07-23 2001-10-23 Measurement Specialities, Inc. Ultrasonic transducer having impedance matching layer
US20050195985A1 (en) * 1999-10-29 2005-09-08 American Technology Corporation Focused parametric array
US7914453B2 (en) 2000-12-28 2011-03-29 Ardent Sound, Inc. Visual imaging system for ultrasonic probe
AU2002243627A1 (en) * 2001-01-22 2002-08-19 American Technology Corporation Improved single-ended planar-magnetic speaker
US6934402B2 (en) * 2001-01-26 2005-08-23 American Technology Corporation Planar-magnetic speakers with secondary magnetic structure
ES2346720T3 (es) * 2001-02-08 2010-10-19 Tyco Healthcare Group Lp Instrumento quirurgico ultrasonico.
US6758094B2 (en) * 2001-07-31 2004-07-06 Koninklijke Philips Electronics, N.V. Ultrasonic transducer wafer having variable acoustic impedance
US6954406B2 (en) * 2003-03-04 2005-10-11 Jones Joie Pierce Acoustical source and transducer having, and method for, optimally matched acoustical impedance
CN100460871C (zh) * 2003-03-04 2009-02-11 茹瓦·皮尔斯·琼斯 制造换能器的方法和声能传输装置以及使声能匹配的制品
US20060280315A1 (en) * 2003-06-09 2006-12-14 American Technology Corporation System and method for delivering audio-visual content along a customer waiting line
WO2005043771A1 (en) * 2003-10-23 2005-05-12 American Technology Corporation Method of adusting linear parameters of a parametric ultrasonic signal to reduce non-linearities in decoupled audio output waves and system including same
DE102004022838A1 (de) * 2004-05-08 2005-12-01 Forschungszentrum Karlsruhe Gmbh Ultraschallwandler sowie Verfahren zur Herstellung desselben
ITBO20040449A1 (it) * 2004-07-19 2004-10-19 Dario Albarello Misuratore di rumore sismico portatile ad alte prestazioni per applicazioni ingegneristiche e geologiche
US7393325B2 (en) 2004-09-16 2008-07-01 Guided Therapy Systems, L.L.C. Method and system for ultrasound treatment with a multi-directional transducer
US9011336B2 (en) * 2004-09-16 2015-04-21 Guided Therapy Systems, Llc Method and system for combined energy therapy profile
US7824348B2 (en) 2004-09-16 2010-11-02 Guided Therapy Systems, L.L.C. System and method for variable depth ultrasound treatment
US10864385B2 (en) 2004-09-24 2020-12-15 Guided Therapy Systems, Llc Rejuvenating skin by heating tissue for cosmetic treatment of the face and body
US7530958B2 (en) * 2004-09-24 2009-05-12 Guided Therapy Systems, Inc. Method and system for combined ultrasound treatment
US8535228B2 (en) 2004-10-06 2013-09-17 Guided Therapy Systems, Llc Method and system for noninvasive face lifts and deep tissue tightening
US8444562B2 (en) 2004-10-06 2013-05-21 Guided Therapy Systems, Llc System and method for treating muscle, tendon, ligament and cartilage tissue
US9827449B2 (en) 2004-10-06 2017-11-28 Guided Therapy Systems, L.L.C. Systems for treating skin laxity
US20060111744A1 (en) 2004-10-13 2006-05-25 Guided Therapy Systems, L.L.C. Method and system for treatment of sweat glands
US11235179B2 (en) 2004-10-06 2022-02-01 Guided Therapy Systems, Llc Energy based skin gland treatment
US8663112B2 (en) 2004-10-06 2014-03-04 Guided Therapy Systems, Llc Methods and systems for fat reduction and/or cellulite treatment
US9694212B2 (en) 2004-10-06 2017-07-04 Guided Therapy Systems, Llc Method and system for ultrasound treatment of skin
EP2279699B1 (en) 2004-10-06 2019-07-24 Guided Therapy Systems, L.L.C. Method for non-invasive cosmetic enhancement of cellulite
US8690778B2 (en) 2004-10-06 2014-04-08 Guided Therapy Systems, Llc Energy-based tissue tightening
DE202005022062U1 (de) 2004-10-06 2012-12-18 Guided Therapy Systems, Llc System zur Ultraschallgewebebehandlung
US8133180B2 (en) 2004-10-06 2012-03-13 Guided Therapy Systems, L.L.C. Method and system for treating cellulite
US7530356B2 (en) * 2004-10-06 2009-05-12 Guided Therapy Systems, Inc. Method and system for noninvasive mastopexy
US7758524B2 (en) 2004-10-06 2010-07-20 Guided Therapy Systems, L.L.C. Method and system for ultra-high frequency ultrasound treatment
US11883688B2 (en) 2004-10-06 2024-01-30 Guided Therapy Systems, Llc Energy based fat reduction
US11724133B2 (en) 2004-10-07 2023-08-15 Guided Therapy Systems, Llc Ultrasound probe for treatment of skin
US11207548B2 (en) 2004-10-07 2021-12-28 Guided Therapy Systems, L.L.C. Ultrasound probe for treating skin laxity
JP4695188B2 (ja) 2005-04-25 2011-06-08 アーデント サウンド, インコーポレイテッド コンピュータ周辺機器の安全性を向上させるための方法および装置
US9987666B2 (en) 2006-01-20 2018-06-05 Naura Akrion Inc. Composite transducer apparatus and system for processing a substrate and method of constructing the same
US9049520B2 (en) 2006-01-20 2015-06-02 Akrion Systems Llc Composite transducer apparatus and system for processing a substrate and method of constructing the same
EP2014236A4 (en) * 2006-04-28 2016-05-11 Konica Minolta Inc ULTRASOUND PROBE
US9566454B2 (en) * 2006-09-18 2017-02-14 Guided Therapy Systems, Llc Method and sysem for non-ablative acne treatment and prevention
US8275137B1 (en) 2007-03-22 2012-09-25 Parametric Sound Corporation Audio distortion correction for a parametric reproduction system
US20150174388A1 (en) 2007-05-07 2015-06-25 Guided Therapy Systems, Llc Methods and Systems for Ultrasound Assisted Delivery of a Medicant to Tissue
EP2152351B1 (en) 2007-05-07 2016-09-21 Guided Therapy Systems, L.L.C. Methods and systems for modulating medicants using acoustic energy
CN101918151B (zh) * 2007-11-06 2013-01-02 艾奎昂技术股份有限公司 用于处理基板的复合换能器装置和系统及其构造方法
US12102473B2 (en) 2008-06-06 2024-10-01 Ulthera, Inc. Systems for ultrasound treatment
US10537304B2 (en) 2008-06-06 2020-01-21 Ulthera, Inc. Hand wand for ultrasonic cosmetic treatment and imaging
WO2010044312A1 (ja) * 2008-10-17 2010-04-22 コニカミノルタエムジー株式会社 アレイ型超音波振動子
US8264126B2 (en) * 2009-09-01 2012-09-11 Measurement Specialties, Inc. Multilayer acoustic impedance converter for ultrasonic transducers
US8715186B2 (en) 2009-11-24 2014-05-06 Guided Therapy Systems, Llc Methods and systems for generating thermal bubbles for improved ultrasound imaging and therapy
KR20130102526A (ko) 2010-06-14 2013-09-17 파라메트릭 사운드 코포레이션 개선된 파라메트릭 신호 처리 및 에미터 시스템 그리고 관련 방법
KR101939725B1 (ko) 2010-08-02 2019-01-17 가이디드 테라피 시스템스, 엘.엘.씨. 초음파 치료 시스템 및 방법
US9504446B2 (en) 2010-08-02 2016-11-29 Guided Therapy Systems, Llc Systems and methods for coupling an ultrasound source to tissue
US8857438B2 (en) 2010-11-08 2014-10-14 Ulthera, Inc. Devices and methods for acoustic shielding
WO2012112137A1 (en) * 2011-02-15 2012-08-23 Halliburton Energy Services Inc. Acoustic transducer with impedance matching layer
US9452302B2 (en) 2011-07-10 2016-09-27 Guided Therapy Systems, Llc Systems and methods for accelerating healing of implanted material and/or native tissue
WO2013012641A1 (en) 2011-07-11 2013-01-24 Guided Therapy Systems, Llc Systems and methods for coupling an ultrasound source to tissue
US9036831B2 (en) 2012-01-10 2015-05-19 Turtle Beach Corporation Amplification system, carrier tracking systems and related methods for use in parametric sound systems
JP5972581B2 (ja) * 2012-01-23 2016-08-17 東芝メディカルシステムズ株式会社 超音波診断装置
US9263663B2 (en) 2012-04-13 2016-02-16 Ardent Sound, Inc. Method of making thick film transducer arrays
WO2013158298A1 (en) 2012-04-18 2013-10-24 Parametric Sound Corporation Parametric transducers related methods
US8934650B1 (en) 2012-07-03 2015-01-13 Turtle Beach Corporation Low profile parametric transducers and related methods
US9510802B2 (en) 2012-09-21 2016-12-06 Guided Therapy Systems, Llc Reflective ultrasound technology for dermatological treatments
US9823104B2 (en) * 2013-02-21 2017-11-21 Rowe Technologies, Inc. Acquatic velocity scanning apparatus and methods
CN113648552B (zh) 2013-03-08 2025-03-28 奥赛拉公司 用于多焦点超声治疗的装置和方法
WO2014146022A2 (en) 2013-03-15 2014-09-18 Guided Therapy Systems Llc Ultrasound treatment device and methods of use
US8903104B2 (en) 2013-04-16 2014-12-02 Turtle Beach Corporation Video gaming system with ultrasonic speakers
US8988911B2 (en) 2013-06-13 2015-03-24 Turtle Beach Corporation Self-bias emitter circuit
US9332344B2 (en) 2013-06-13 2016-05-03 Turtle Beach Corporation Self-bias emitter circuit
SG11201608691YA (en) 2014-04-18 2016-11-29 Ulthera Inc Band transducer ultrasound therapy
DE102015202396A1 (de) * 2015-02-11 2016-08-11 Robert Bosch Gmbh Ultraschallarray
WO2016183243A1 (en) 2015-05-11 2016-11-17 Measurement Specialties, Inc. Impedance matching layer for ultrasonic transducers with metallic protection structure
CA3007665A1 (en) 2016-01-18 2017-07-27 Ulthera, Inc. Compact ultrasound device having annular ultrasound array peripherally electrically connected to flexible printed circuit board and method of assembly thereof
IL264440B (en) 2016-08-16 2022-07-01 Ulthera Inc Systems and methods for cosmetic ultrasound treatment of skin
GB2557345B (en) * 2016-12-08 2021-10-13 Bae Systems Plc MIMO communication system and data link
TWI883390B (zh) 2018-01-26 2025-05-11 美商奧賽拉公司 用於多個維度中的同時多聚焦超音治療的系統和方法
WO2019164836A1 (en) 2018-02-20 2019-08-29 Ulthera, Inc. Systems and methods for combined cosmetic treatment of cellulite with ultrasound
DE102018206937A1 (de) * 2018-05-04 2019-11-07 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Impedanzanpassungsvorrichtung, Wandlervorrichtung und Verfahren zum Herstellen einer Impedanzanpassungsvorrichtiung
US12377293B2 (en) 2019-07-15 2025-08-05 Ulthera, Inc. Systems and methods for measuring elasticity with imaging of ultrasound multi-focus shearwaves in multiple dimensions
US11333016B2 (en) 2020-01-22 2022-05-17 Halliburton Energy Services, Inc. Ultrasonic transducer for measuring wellbore characteristics

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5353393A (en) * 1976-10-25 1978-05-15 Matsushita Electric Ind Co Ltd Ultrasonic probe
US4366406A (en) * 1981-03-30 1982-12-28 General Electric Company Ultrasonic transducer for single frequency applications
JPS5848213U (ja) * 1981-09-29 1983-04-01 株式会社島津製作所 超音波探触子
JPS5848221U (ja) * 1981-09-30 1983-04-01 株式会社島津製作所 超音波診断装置の探触子
US4427912A (en) * 1982-05-13 1984-01-24 Ausonics Pty. Ltd. Ultrasound transducer for enhancing signal reception in ultrasound equipment
JPS592311U (ja) * 1982-06-30 1984-01-09 株式会社島津製作所 超音波探触子
JPS58101616U (ja) * 1982-09-02 1983-07-11 松下電器産業株式会社 超音波プロ−ブ
JPS59117964U (ja) * 1983-01-31 1984-08-09 日本電波工業株式会社 配列型探触子
DE3309236A1 (de) * 1983-03-15 1984-09-20 Siemens AG, 1000 Berlin und 8000 München Ultraschallwandler
EP0142215A3 (en) * 1983-05-26 1987-03-11 Advanced Technology Laboratories, Inc. Ultrasound transducer with improved vibrational modes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4325028A1 (de) * 1993-07-26 1995-02-02 Siemens Ag Ultraschall-Wandlereinrichtung mit einem ein- oder zweidimensionalen Array von Wandlerelementen
DE4325028B4 (de) * 1993-07-26 2005-05-19 Siemens Ag Ultraschall-Wandlereinrichtung mit einem ein- oder zweidimensionalen Array von Wandlerelementen
DE102007045494B4 (de) * 2006-09-22 2017-10-19 Denso Corporation Ultraschallsensor

Also Published As

Publication number Publication date
JPH0553360B2 (enrdf_load_stackoverflow) 1993-08-09
US4672591A (en) 1987-06-09
DE3501808A1 (de) 1986-07-24
JPS61170199A (ja) 1986-07-31

Similar Documents

Publication Publication Date Title
DE3501808C2 (enrdf_load_stackoverflow)
DE68922040T2 (de) Zusammengesetzter piezoelektrischer Wandler zur Anwendung in einer Ultraschallsonde.
DE69516055T2 (de) Ultraschallumwandler
EP0041664B1 (de) Verfahren zur Herstellung einer Ultraschallwandleranordnung
DE3731196C2 (enrdf_load_stackoverflow)
EP2266162B1 (de) Resonanzfilter mit geringem verlust
EP0166976B1 (de) Ultraschallwandlersystem
DE3733776A1 (de) Ultraschallsonde
DE9401033U1 (de) Ultraschallwandlersystem mit zwei oder mehr Resonanzfrequenzen
DE10230129A1 (de) Ultraschall-Messwertwandlervorrichtung zur Verbesserung der Auflösung in einem Abbildungssystem
DE2915761A1 (de) Vorrichtung zur ultraschall-untersuchung eines objektes
DE3210925A1 (de) Ultraschallwandler
DE3526488A1 (de) Ultraschall-wandler mit piezoelektrischem verbundmaterial
EP0118837B1 (de) Ultraschallwandler
DE1276834B (de) Elektromechanische Vorrichtung zum AEndern der Amplitude eines akustischen Signals
DE4005184C2 (enrdf_load_stackoverflow)
DE2351665B2 (de) Rechtwinklige AT-geschnittene Quarzkristallplatte
DE10047942B4 (de) Sensorarray, Verfahren zum Herstellen eines Sensorarrays und Verwendung eines Sensorarrays
DE1466152B2 (de) Piezoelektrischer biegeschwinger der bimorphbauart und verfahren zur herstellung desselben
DE3785892T2 (de) Quartzkristall fuer akustische oberflaechenanordnung.
DE1616355B1 (de) Elektromechanischer Wandler
DE1265884B (de) Elektromechanisches Filter mit piezoelektrischem Antrieb und Laengsschwingungen oder Biegeschwingungen ausfuehrenden Resonatoren
DE3149732C2 (enrdf_load_stackoverflow)
DE2019780C3 (de) Verfahren zum nachträglichen Abgleichen der Laufzeit von elektroakustischen Verzögerungsleitungen auf piezoelektrischen Keramiksubstraten
DE69608629T2 (de) Piezoelektrischer Verbund mit anisotropen 3-3 Zusammenhang

Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition